<html>
<head>
	<meta charset="UTF-8">
	<title>border-image</title>
	<style type="text/css">
		.bitmap {
			width: 100px;
			text-align: center;
			border: 30px solid transparent;
			padding: 20px;
			border-image: url("./border.png") 30;
		}
	</style>
</head>
<body>
	<div class="bitmap">图片边框</div>
</body>
</html>